A roller cone body defines a circumferential channel or race into which a plurality of cutter or wear segments are mounted. The wear segments may be of any appropriate contour or shape, such as for example chisel, spherical, or even flat face and are preferably made or carbide. The wear elements may be all the same within a channel or race, or they may be varied within a race as needed for a particular application.

 
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< Photograph holder

< Target jumper

> Sum-of-absolute-difference checking of macroblock borders for error detection in a corrupted MPEG-4 bitstream

> System for interconnecting wall blocks

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